<div dir="ltr"><div>A more recent spec sheet shows the MPPT window starting at 200v instead of 250v, which is a significant improvement.</div><div><br></div><div>Brad<br></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Sep 25, 2018 at 2:41 PM Dave Angelini Offgrid Solar <<a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">AEE had a training course webinar. The screenshot is from them and they<br>
say October...<br>
<br>
On Tue, 25 Sep 2018 11:49:10 -0700, Jay <<a href="mailto:jay.peltz@gmail.com" target="_blank">jay.peltz@gmail.com</a>> wrote:<br>
> Hi all<br>
> <br>
> What is the news on the skybox? <br>
> <br>
> Last I checked it was still MIA<br>
> <br>
> Jay<br>
> <br>
> <br>
> <br>
>> On Sep 25, 2018, at 9:13 AM, Jeff Clearwater<br>
>> <<a href="mailto:jeffc@villagepowerdesign.com" target="_blank">jeffc@villagepowerdesign.com</a>> wrote:<br>
>> <br>
>> Hi Dave and All. <br>
>> <br>
>> Reasons for HV batteries off grid? <br>
>> <br>
>> 1) Smaller cable size (I just did an 18 Kw off grid with 4 SIs and the<br>
>> cable costs alone were in the order of $400) and increased flexibility<br>
>> locating batteries and inverter. 10 AWG plug and play.<br>
>> <br>
>> 2) Higher efficiencies. Easy integration on the DC bus.<br>
>> <br>
>> 3) Integration with GTBB battery tech and systems. Why have two<br>
>> standards and two sets of equipment? The line between Off Grid and<br>
GTBB<br>
>> will blur as more GT customers want more storage and more Off-grid<br>
>> customers want the option of grid hookup at some point. For<br>
developing<br>
>> countries as off grid micro grids grow they can merge.<br>
>> <br>
>> 4). Integration with Electric Vehicles as storage for either GTBB or<br>
>> Off-Grid - can integrate on the DC bus seamlessly.<br>
>> <br>
>> These are the reasons that seem obvious to me. I\u2019d be surprised if the<br>
>> manufacturers are not thinking this way. Though you may be right as I<br>
was<br>
>> surprised that Outback went 48V with the Skybox. And it\u2019s been a hard<br>
>> sell to get SMA to support US off-grid. If the equipment could do both<br>
>> seamlessly they would have more market.<br>
>> <br>
>> And High Voltage safety is not really an issue with proper (standard<br>
>> electrician) training and as the only electrician or customer interface<br>
>> is a plug or set of small non-energized terminals. Having high voltage<br>
DC<br>
>> in you car is more dangerous. House fires are caused by amperage leaks<br>
>> (much higher in Low V) (and shorted PB-acid) way more than voltage<br>
leaks.<br>
>><br>
>> <br>
>> I\u2019m off to SPI. I\u2019ll ask them . . From what I understand Pika is<br>
heading<br>
>> that direction. I imagine Powerwall too if they ever decide to support<br>
>> off-grid.<br>
>> <br>
>> Best<br>
>> <br>
>> Jeff<br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
>> <br>
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</blockquote></div>